<div id="leftcol">
    <?php $category = get_category_by_slug('an-toan-an-ninh-hang-hai'); ?>
    <div class="box">
            <h2><a href=""><?php echo $category->name; ?></a></h2>
            <?php echo postListByCategorySlug('an-toan-an-ninh-hang-hai'); ?>
    </div>
    <div class="clear"></div>
    <?php $category = get_category_by_slug('vi-tri-tau-tai-cang'); ?>
    <div class="box">
        <h2><a href=""><?php echo $category->name; ?></a></h2>
	<?php echo postListByCategorySlug('vi-tri-tau-tai-cang'); ?>
    </div>
    <div class="clear"></div>
</div>
<!--end: leftcol-->
